入世后我国进口商品贸易特征与战略调整

2001年加入世贸组织后,我国商品进口贸易迅速增长,成为全球贸易中的进口大国.当前,我国进口商品的主要特征是:进口以短缺能源、原材料以及关键设备、高新技术产品为主,进口市场较为集中、进口与出口不对称,一般贸易进口和外资企业进口占主导.因此,应该通过转变轻视进口观念,进口技术产品与自主创新结合,促进进口市场多元化,完善进口税收,建立进口服务体系等措施,积极扩大进口.     

海洋功能区划与海岸带综合利用和保护规划的协同效应

系统地研究了海洋功能区划的理论和海岸带的特征、利用开发和保护,阐述了在综合利用开发海岸带的同时,海岸带综合利用保护规划和海洋功能区划之间的协同性。     

试论用科学发展观反腐败的几个重大问题

科学发展观是我党的最新理论成果,用科学发展观指导反腐败,首先要看能否产生实际效用,其次要看能否站在人民的立场上,再次要看是否能运用统筹兼顾的方法,最后要看能否以可持续发展为基本目标。只有这样,我们才能既取得反腐败的伟大胜利,又能够保持我国社会的稳定和可持续发展,从而顺利实现我国建设富强民主文明和谐的社会主义现代化国家的宏伟目标。     

Causality effects in return volatility measures with random times

We provide a structural approach to identify instantaneous causality effects between durations and stock price volatility. So far, in the literature, instantaneous causality effects have either been excluded or cannot be identified separately from Granger type causality effects. By giving explicit moment conditions for observed returns over (random) duration intervals, we are able to identify an instantaneous causality effect. The documented causality effect has significant impact on inference for tick-by-tick data. We find that instantaneous volatility forecasts for, e.g., IBM stock returns must be decreased by as much as 40% when not having seen the next quote change before its (conditionally) median time. Also, instantaneous volatilities are found to be much higher than indicated by standard volatility assessment procedures using tick-by-tick data. For IBM, a naive assessment of spot volatility based on observed returns between quote changes would only account for 60% of the actual volatility. For less liquidly traded stocks at NYSE this effect is even stronger.     

中国服务贸易推动经济增长效应研究——基于两阶段时间序列数据的实证分析

服务贸易的日益快速增长是我国入世后服务贸易的特点之一.本文通过引入贸易竞争指数,对入世前后两个阶段的服务贸易与经济增长关系进行实证的比较分析,以寻求对入世前后两个不同阶段的经济增长效应分析.分析结果说明入世以来我国对外服务贸易受到的冲击较大.对此,文章将发挥静态比较优势和培育动态比较优势相结合,就服务贸易对经济增长的推动作用提出了可行的政策建议.     

无功功率补偿在供配电系统设计中的应用

无功补偿能减少线路的损耗、减小导线截面积和变压器容量、减少线路压降。无功补偿的方式有变电所集中补偿、用电负荷就地补偿、配电线路的分散补偿等。无功补偿应注意的问题有防止产生自励、谐波问题、无功倒送问题、电压调节方式的补偿给设备带来的问题等。无功补偿的发展方向有电力有源滤波器、统一潮流控制器这说明了无功补偿在企业供配电系统设计中的重要应用。     

国内贸易与经济增长关系研究综述

传统国际贸易理论出自市场化国家,它以国家为单位考察贸易问题,舍象了国内贸易问题,这给后进国家（尤其是国内贸易机会未被充分利用的发展中大国）对贸易作用的认识产生了严重影响,容易出现＂重外贸、轻内贸＂现象。因此,有必要对国内贸易与经济增长关系研究进行简要的梳理和回顾,以强化对经济增长中国内贸易作用的认识,为我国改革开放过程中贸易发展战略的选择提供参考。     

Free trade: what are the terms-of-trade effects?

Changes in trade policy affect a nation’s economic welfare through terms-of-trade and volume-of-trade effects. A move to global free trade would imply higher world economic welfare equal to the sum of all nations’ volume-of-trade, or efficiency, effects. Since the sum of the terms-of-trade effects across all nations is zero, terms-of-trade effects are contentious. Konishi, Kowalczyk and Sjöström (2003) have shown that if customs unions do not affect trade with non-member countries, immediate global free could be achieved if free trade were proposed together with international sidepayments equal to the terms of trade effects. How large would these terms of trade effects, and hence transfers, be? This paper presents estimates from a simple computable general equilibrium model of a world economy of perfect competition. We show that, in some cases, terms-of-trade effects are small compared to efficiency gains, and transfers are not necessary for free trade. In other cases, terms-of-trade gains may account for more than 50% of a country’s gains from free trade and transfers could be large.     

浅谈外汇风险的防范

在国际金融市场动荡加剧的今天，金融风险尤其是外汇风险的防范是当前经济工作中的不可忽视的问题。本文分析了外汇风险造成的损失，总结了外汇风险的防范方法，对从事经济工作尤其是从事涉外经济工作的同志，有一定的警视作用。     

浅谈“入世”对我国外贸发展的消极影响

目前论述“入世”对我国外贸发展的积极作用的文章很多 ,而论述其消极影响的很少。本文主要从“入世”对我国的出口市场结构、出口商品结构、外贸发展方式、外贸发展的地区差异等方面论述其消极影响 ,使人们对“入世”影响的了解更全面。